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Preparation technology for preparing zinc alloy through recycled zinc slag

A preparation process and technology of zinc alloy, applied in the field of zinc slag purification, can solve the problems of high production cost, low quality of recovered zinc ingots, backward production process, etc., and achieve the effects of low production cost, maximizing profit and low processing cost

Active Publication Date: 2018-09-28
浙江芯唐浩志智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a preparation process for preparing zinc alloys by using recycled zinc slag, which can solve the problems of backward production technology, high production cost and low quality of recycled zinc ingots in the current zinc slag recovery process. question

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  • Preparation technology for preparing zinc alloy through recycled zinc slag
  • Preparation technology for preparing zinc alloy through recycled zinc slag
  • Preparation technology for preparing zinc alloy through recycled zinc slag

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Embodiment 1

[0038] A kind of preparation technology of zinc alloy prepared from recycled zinc slag

[0039] The preparation process is as follows:

[0040] S10, after the zinc block is completely melted in the smelting furnace, add zinc slag, stir once every 5 minutes until it is completely dissolved into zinc water, the smelting furnace heats up to 650°C at a rate of 10°C / min, add slag remover, roll and stir to remove slag;

[0041] In the above operation, the addition ratio of zinc block and zinc slag is 1000kg: 300kg; the slag cleaning agent is ammonium chloride.

[0042] S20, the zinc water after slag removal in S10, pick up the zinc ash on the surface of the zinc water with a colander, put the zinc ash into the ash fryer, and fry the ash. With the increase of the zinc water in the smelting furnace, repeatedly remove the ash, Until the zinc water is full of 85% in the furnace, stop ash removal, and cut off the power, add refining agent in proportion to the obtained zinc water, remov...

Embodiment 2

[0050] A kind of preparation technology of zinc alloy prepared from recycled zinc slag

[0051] The preparation process is as follows:

[0052] S10, after the zinc block is completely melted in the smelting furnace, add zinc slag, stir once every 10 minutes until it is completely dissolved into zinc water, the smelting furnace heats up to 680°C at a rate of 20°C / min, add slag remover, roll and stir to remove slag;

[0053] In the above operation, the addition ratio of zinc block and zinc slag is 1000kg: 700kg; the slag cleaning agent is sodium nitrite.

[0054] S20, the zinc water after slag removal in S10, pick up the zinc ash on the surface of the zinc water with a colander, put the zinc ash into the ash fryer, and fry the ash. With the increase of the zinc water in the smelting furnace, repeatedly remove the ash, Until the zinc water is 92% full in the furnace, stop removing ash, and cut off the power, add refining agent in proportion to the obtained zinc water, remove sl...

Embodiment 3

[0062] A kind of preparation technology of zinc alloy prepared from recycled zinc slag

[0063] The preparation process is as follows:

[0064] S10, after the zinc block is completely melted in the smelting furnace, add zinc slag, stir once every 6 minutes until it is completely dissolved into zinc water, the smelting furnace heats up to 660°C at a rate of 12°C / min, add slag remover, roll and stir to remove slag;

[0065] In the above operation, the addition ratio of zinc block and zinc slag is 1000kg: 400kg; the slag cleaning agent is ammonium chloride.

[0066] S20, the zinc water after slag removal in S10, pick up the zinc ash on the surface of the zinc water with a colander, put the zinc ash into the ash fryer, and fry the ash. With the increase of the zinc water in the smelting furnace, repeatedly remove the ash, Until the zinc water is 88% full in the furnace, stop removing ash, and cut off the power, add refining agent in proportion to the obtained zinc water, remove ...

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Abstract

The invention relates to a preparation technology for preparing zinc alloy through recycled zinc slag. The preparation technology comprises the following steps that S10, after a zinc bock is completely melted in a smelting furnace, zinc slag is added into the zinc block, the zinc slag and the zinc block are stirred to be completely dissolved into molten zinc, the temperature of the smelting furnace is raised to 650-680 DEG C, a slag removal agent is added, and rolling over and stirring are conducted for slag removal; S20, zinc ash on the surface of the molten zinc in the step S10 is removed, arefining agent is proportionally added into the molten zinc, slag removal and gas exhaust are conduced, the temperature is controlled, slag formation is carried out repeatedly, and detrimental impurities are removed; and S30, when the temperature of the molten zinc is preserved to 630-660 DEG C, waste aluminum wires are proportionally added immediately and stirred to be completely melted, then, agrain refiner is proportionally added and sufficiently stirred, after still standing, pouring is conduced, and a formed zinc alloy block is obtained after natural cooling. Through the preparation technology, the problems that in the zinc slag recycling process at present, the production technology falls behind, the production cost is high, and the quality of recycled zinc ingots is low are solved, and meanwhile, the prepared zinc alloy has the excellent properties of oxidative deterioration resistance, rust resistance and high-strength abrasion resistance.

Description

technical field [0001] The invention belongs to the technical field of zinc slag purification, and in particular relates to a preparation process for preparing zinc alloy by using recovered zinc slag. Background technique [0002] Zinc slag is the solid waste generated during the process of smelting zinc ingots or the leftover material of zinc oxide volatilized in the rotary kiln. This solid smelting slag usually contains metal substances such as iron, copper, gold and silver, and has considerable comprehensive utilization value. [0003] The existing zinc slag treatment process is limited to extracting valuable metals in the zinc slag, such as silver, iron, gold or copper, and the remaining materials are still piled up as solid waste, and it has not been possible to recover the entire zinc slag. processing to achieve comprehensive applications. Moreover, the treatment methods of zinc slag mainly include wet method and fire method, which have been successfully applied to th...

Claims

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Application Information

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IPC IPC(8): C22C18/00C22C1/02C22C1/06
CPCC22C1/02C22C1/06C22C18/00
Inventor 徐锦涛唐建锋
Owner 浙江芯唐浩志智能科技有限公司